Power-transmitter



(No Model.) 3 Sheets-Sheet 1.

T. 0. HUTGHINSON &"T. W. HUGO.

POWER TRANSMITTER.

No. 440,477. v Patented Nov. 11, 1890.'

ATTORNEYS 3 Sheets-Sheet 2. T. (LHUTGHINSON 84 T. W. HUGO. POWER TRANSMITTER.

No. 440,477. Patented N v. 11, 1890.

(No Model.)

WITNESSES: IZI VENTOH," 74%. 74 w ATTORNEYS Y NORRlS Pnzns cm, PMOro-LITHKL, msnmcvou, o. c.

(No Model.) I 3 Sheets-Sheet 3,

T. G. HUTGHINSON- & T. W. HUGO. PDWER TRANSMITTER.

W m m N W ATTORNEYS UNITED STATES PATENT OFFICE.

THOMAS C, HUTOHINSON AND TREVANION TV. HUGO, OF DULUTH, MINNESOTA.

POWER-TRANSMITTER.

SPECIFICATION forming part of Letters Patent No. 440,477, dated November 11, 1890.

.Application filed July 9, 1890. Serial No. 358,219- (No model.) 1

To all whom it may concern:

Be it known that We, THOMAS C. HUTCHIN SON and TREVANION W. HUGO, citizens of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Power-Transmitters, of which the following is a full, clear, and exact description.

Our invention isa machine adapted for alternately taking up and letting out a rope or chain that is attached to some device or operates some subsidiary mechanism located at a more or less distant point. The rope is wound on drums, whose rotation is reversed at regular intervals by means of automatic mechanism; but the power for operating said drums is derived from a driven shaft that rotates continuously in one direction.

In the accompanying drawings, Figure 1 is aplan View of the machine, a portion of one shaft being broken away. Fig. 2 is a side view of the machine. Fig. 3 is a horizontal section of an elevator-bin, showing one of the practical applications of the machine for use.

The operative parts of the machine are attached to and supported by a suitable frameA. The machine is driven by any suitable motor through the medium of a belt (not shown)- applied to the large combined band and balance-wheel B. Said wheel is mounted on one end of the driving-shaft 1, which is arranged transversely in the frame A, and constantly rotates in one direction, as per arrow, Fig. 1. A counter-shaft 2 is arranged parallel to the said driving-shaft 1, and on these two shafts are mounted certain gears, rope winding drums, and a clutch, as will be presently described. A third transverse shaft 3 is located above and equidistant from the shafts 1 and 2, and also parallel to them, as shown. Its function is solely to carry the gear 6, which is an intermediary for transmitting motion from the driving-shaft l to counter-shaft 2, itbeing for this purpose'arranged to mesh with their respective gears 4 and 5. The shaft 1 carries not only the said gear 4, but gear 7 and drum 9, all three of which are loose, and hence free to revolve independently. The shaft has also a double half-clutch 21, which slides on a feather, and is thus adapted to alternately engage the half-clutch on the gear 7, or a similar one on the drum 9, at the same time that it constantly rotates with the shaft. The clutch is shifted for this purpose by means of acompound lever 29, as will be presently more fully explained.

The gears 5 and 8 and a chain or sprocketwheel 24 are mounted fast on the countershaft 2. The gear 8 meshes with the loose gear 7 0n the drivingshaft 1, and gear 5 with the gear4 on shaft 1 through the intermediary 6, as before stated.

At one end of the frame A, and in a plane above but parallel to the shafts 1 2, is arranged a transverse shaft 13, which carries two fast sprocket-wheels 22 and 23 and a half- ,clutch 17. One end of the shaft 13 hasalefthand screw-thread, and the aforesaid clutch 17 is clamped thereon at the inner terminal of the thread. A grooved sheave 15, threaded interiorly, works on the threaded portion 19 of shaft 13, and has on the inner end of its hub a halfclutch corresponding to the halfclutch 17. Another transverse shaft 14 is arranged at the other end of the frame Ain the same horizontal plane as shaft 13, and carries a sprocket-wheel 21, while one extremity 20 has a right-hand thread, and is provided with the half-clutch l8 and grooved sheave 16, arranged and operating like the corresponding parts of shaft 13, above described. An endless chain or belt 21 runs on the two sprocket-wheels 21 and 22, and another chain or belt 22 on the sprocket-wheels 23 and 24, so that rotary motion is transmitted from shaft 2 to the shafts 13 and 14.

The compound lever 29, that shifts the clutch 21, is operated by a vertical pivoted lever 26, Fig. 2, through the medium of aconnecting-rod 29'. The said lever 26 is vibrated intermittingly and held steady when at rest at each limit of its throw by means of a weight 25, secured to its upper portion. Cords 27 and 28 connect the upper end of the lever with the periphery of sheaves 15 and 16, respectively.

One end 11 of the rope (which extends to the point where work is to be done) is wound on the drum 10 of counter-shaft 2, and the other end 12 is wound on the drum 9 of the driving-shaft 1, the windings being other from above-so that when both drums are revolving in the same direction one will be taking up and the other letting out the line.

The machine operates as follows: Supposing the lever 26 and clutch 21 to be in'the position shown, and motion being imparted to shaft 1 in the direction of the arrow, Fig. 1, the drum 9, which engages said clutch,will revolve with the shaft and carry with it the gear 4, which is secured to it. The gear 4 imparts motion through gear 6 to gear of shaft 2, so that the latter rotates in the same direction as shaft 1, and carries the gear 8 and drum 10 with it. The same motion will be transmitted to the shafts 13 and 14, and

- as the result the rope end 12 is wound on drum 9 and the-other end 11 let off from the other drum 10, while the sheavel 6 is gradually worked (by the right-hand screw 20) away from clutch 18, and the sheave -15 moved toward the clutch 17 and finallylocked with it, at which moment the sheave 15 will begin to revolve with the shaft 13 and wind on the cord 27, thus drawing the lever 26 over to the left, Fig. 2, thus causing the compound lever 29 to shift clutch 21 from drum 9 into engage- I ment with the gear 7. The action of the entire machine (save shaft 1) will then be re versed, so that the line or rope will be wound onthe drum 10 and unwound from the other drum 9, until the sheave 16 shall be worked inward on the thread 20 and locked with clutch 18, when the said sheave will wind up the cord 28, and pull the weighted lever 26 back to its original position, (shown in full I lines, Fig. 2,) so that the machine reverses a second time.

It will be seen that the rope 11 12 is caused to travel first one way and then the'other or reverse way by this operation of the machine, which adapts it to operate any device, mechanism, car, or carriage to which such alternating movement may be applicable. In this instance we show the rope running on anti-friction pulleys and connected with hand-scrapers S, Fig. 3, located in separate grain-elevator bins, so that said scrapers may be utilized for drawing or pushing grain toward an outlet or discharge-openin g. (Not shown.) The machine is obviously adapted for scraping any kind of material for short I, distances.

The functon of the gears 4, 5, and 6- is simply to insure uniformity of rotation of the drums 9 and 10.

It will be perceived that the lengthof rope taken up by either drum will be governed by the distance the clutches 15 and 16 are set from the half-clutches 17 and 18.

The drum 10 is shown secured to gear 8 on shaft 2. This arrangement economizes space, for it will be seen that if the drum were fastened to gear 7 and mounted loose on shaft 1, and both ends of the rope were wound on the 1 two drums alike, the same reciprocating movement would be imparted to the rope, although i the drums would not revolve in the same dithe sheaves and threadedshafts on-which they are mounted, clutches for said sheaves, and windingmeohanism whereby said lever is shifted as the sheaves alternately engage with and disengage from their clutches, thus reversingthe winding mechanism, asshown and described.

3. The combination, with the driving-shaft rotating constantly in one directionand the counter-shaft 2, of the rope-drums and meshing-gears7 and 8 mounted thereon, a shiftable clutch 21, adapted to engageone of the drums on one of the gears, a vibrating lever 26 and means for connecting it with said clutch, two shafts rotating together and. having threaded portions, sheaves. mounted on the latter and adapted .to alternately clutch with collars on their shafts, and means. for. connecting the'sheaves with the vibrating lever, whereby it is thrown alternately in opposite directions and held temporarily atrest, for the purpose of reversing the machine, as set forth.

4. The combination, with the drivingsshaft rotating constantly in one direction, the countereshaft .2, and connecting gearings 4 5 6, of the .drum 9 and'gear ,7 mounted loose on said driving-shaft,.the drum 10,.gear 8, and sprocket-wheel 24, fast on the counter-shaft, a power-transmitting rope whose .ends are wound in opposite directions on the respective drums, the parallel shafts 13 and 14, having screw-threaded portions, and. thesheaves 15 and 16, clutches and sprocket-wheels mounted on said shafts, the endless chains operating and connecting the latter and the countershaft, the double half-clutch 21, sliding on a feather of the driving-shaft and engaging alternately the drum 9 and gear 7, a lever for shifting said clutch, the weighted pivotallyvibrating lever 26, and the cords connecting it with the peripheries of the aforesaid sheaves, all as shown and described, to operate as specified. I

THOMAS C. HUTCHINSON. TREVANION W. HUGO. "Witnesses:

JOHN CURRIE, S. GEO. STEVENS. 

